*{
    margin: 0;
    padding: 0;
}
.box{
    width: 100%;
}
.top{
    width: 990px;
    margin: auto;
    background-color: bisque;
    position: relative;
}
.goods{
    position: absolute;
    left: 100px;
    top: 0;
}
.a2{
    position: absolute;
    right: 20px;
    top: 0;
}
.a2 span{
    margin-right: 40px;
}

.gouwu{
    margin-top: 30px;
    
}
li{
    list-style: none;
   
    width: 990px;
    margin: auto;
    position: relative;
   border-bottom: 1px solid #ddd;
   margin-bottom: 20px;
}


.num span{
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
}
.itxt{
    width: 40px;
    text-align: center;
}
img{
    width: 100px;
    height: 100px;
    vertical-align: middle;
}
.p-right{
    position: absolute;
    right: 20px;
    line-height: 100px;
}
a{
    text-decoration: none;
    color: #ddd;
}
.p-right>span{
    margin-right: 20px;
}
.bottom{
    margin-top: 20px;
    background-color: #ddd;
    width: 990px;
    margin: auto;
    height: 40px;
    line-height: 40px;

}
.bottom div{
    float: left;
}
.right{
    margin-left: 400px;
}
.change{
    background-color: #e1251b;
}
.min,
.add{
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border: 1px solid gray;
    cursor: pointer;
}